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Class 11 Book Solution from S N Dey in Properties of Triangles Question No: 11.4.19

ABC ত্রিভুজের ক্ষেত্রে \(C = \frac{\pi}{2}\) এবং \(tan\frac{A}{2}, tan\frac{B}{2}\) \(px^2 + qx + r = 0 (p \neq 0)\) সমীকরণের দুটি বীজ হয়, তবে দেখাও যে, \(p + q = r\)

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